advanced tools for scholars and researchers
05 interval tools for ODEs and DAEs swim08 nedialkov
... methods for ODE’s, http://www.eng.mu.edu/corlissg/Pubs/03Lyngby/Slides/ [2] N S Nedialkov, Interval tools for ODEs and DAEs, http://www.cas.mcmaster.ca/∼ nedialk/PAPERS/intvtools/intvtools.pdf ... Walter and A Griewank report of a similar implementation, but using the ADOL-C package R Barrio uses Mathematica to compute Σ, set up a generalized ODE system, and then generate FORTRAN 77 code for ... methods for classes of problems may be a feasible approach • An efficient method for stiff problems is needed • An “interval version“ of DETEST, a test set for assessing approximate solvers for IVP...
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Stochastic Tools for Mathematics and Science pptx
... University of California, Berkeley, and Math 280 at the University of California, Davis, for their comments, corrections, and patience, and in particular Ms K Schwarz, who corrected errors and obscurities ... Stochastic Process 4.2 Covariance and Spectrum 4.3 Scaling and the Inertial Spectrum of Turbulence 4.4 Random Measures and Random Fourier Transforms 4.5 Prediction for Stationary Stochastic Processes ... slightly different form Let the random variables ηi for i = 1, 2, be independent and have each the pdf f , with mean and variance as above, and construct the following sequence of random variables:...
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Digital Signal Processing Using MATLAB for Students and Researchers ppt
... fscanf() as before with appropriate formatting conversion specifiers like %s for string, %d for numeric and so forth, we are restricted to intrinsic machine data types such as ‘uchar’ for an unsigned ... number of colors present, and so forth A great many standards for data representation exist in practice For example, a common format found on Windows is the “bitmap” file format with extension bmp, ... m-file, its inputs and outputs, and any usage limitations It’s usually a good idea to develop a template with sufficient information for future use, and to use it consistently For example: % % %...
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Validation of brief screening tools for depressive and alcohol use disorders among TB and HIV patients in pdf
... from non-cases respectively (AUROC for CES-D = 0.78, and for AUDIT = 0.98 for women and 0.75 for men respectively), indicating that these were accurate screening tools The difference in Discussion ... sensitivity of 60% and PPV of 60% for women, and a sensitivity of 55% and PPV of 50% men for AUDs The sensitivities of the AUDIT were moderate (55% sensitivity for men; 60% for women), Chishinga ... high sensitivity and PPV while the AUDIT showed moderate sensitivity and PPV in men and women, indicating that these are suitable tools for screening current MDD and AUD among TB and ART patients...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 2 pot
... solutions in two different cases, and leave other cases as exercises for your fun and exploration © 2001 by CRC Press LLC Case Here, a = –0.99, and we consider the cases b = and b = 0.98 The starting ... b=sqrt(1-a^2); rx=rand(1,40); ry=rand(1,40); © 2001 by CRC Press LLC FIGURE 2.5 Plot of multiple Hénon orbits having the same a = 0.25 but random starting points for n=1:1500 for m=1:40 x(1,m)=-0.99+2*rx(m); ... the other hand, in the difference equation formulation of this class of problems, the present output y(k) is expressed as a linear combination of the present and m most recent inputs and of the...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 3 docx
... the use and syntax of the zoom and ginput commands for a more accurate reading of the coordinates of a point.) Pb 3.4 Write a function M-file for the line passing through a given point and intersecting ... parameters b Holding the graph for the case R = 100Ω, sketch L1 and L2 again for R = 50Ω and R = 500Ω How the values of the voltage and the current change as R increases; and decreases? c Determine ... a Keeping the values of Vs and R1 fixed, sketch the functions V(R) and I(R) for this circuit, and verify that the solutions you found previously in Pbs 3.7 and 3.8, for the various values of R,...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 4 docx
... iterative equations for D(k) and D2(k), as given respectively by Eqs (4.16) and (4.30), and with the initial conditions for the function and its derivative The first elements for the y, D, and D2 arrays ... y(2 N ) + y(2 N + 1) that is, the weights are equal to for the first and last elements, equal to for even elements, and equal to for odd elements Example 4.7 Using Simpson’s rule, compute ... Question: Compute analytically from Eqs (4.58) and (4.59), the steady-state values for the higher excited state population and for the photon number, and compare with the numerically obtained asymptotic...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 5 potx
... analytically MATLAB has a built-in command that finds all the roots (real and complex) for any polynomial equation As previously noted, the MATLAB command for finding the polynomial roots is roots: ... that it satisfies, and its value and that of its derivative at x = 0, namely: J ( x = 0) = and J ( x = 0) = ′ The problem that we want to solve is to find the zeros of J0(x) and compare to these ... The command is poly poly(r) In-Class Exercise Pb 5.14 Find the roots of the polynomial p = [1 pute their sum and product 3], and com- Pb 5.15 Consider the two polynomials: p1 = [1 3] and p2 =...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 6 pdf
... values for the lower and upper cutoff frequencies and the sampling time: f1 = 200 Hz; f2 = 400 Hz; τ = 10–5 s find f0 and plot the gain curve as function of the normalized frequency for the bandpass ... rules for the addition and subtraction of vectors Example 6.2 Find the sum and difference of the complex numbers © 2001 by CRC Press LLC z1 = + 2j and z2 = + j Solution: Grouping the real and imaginary ... Analytically and numerically, obtain in the standard form an expression for each of the following quantities: a + 4j + 5j b 3+j (1 − j )(3 + j ) 1− 2j + j − c 2j 2 + 3j Pb 6.9 For any pair...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 7 pot
... element of the space; and b If a and b are constants, and ϕ and ψ are elements belonging to the space, then a ϕ + b ψ is also an element of the space There is an inner (dot) product for any two elements ... by CRC Press LLC for − ≤ x ≤ a for a < x ≤ (7.112) Solution: The conditions for the above theorem are satisfied, and cl = l + 1 2 ∫ P (x)dx a l (7.113) From Eq (7.96), and noting that Pl(1) ... Rseries Rparallel (7.43) The proof is straightforward Using Eq (7.37) and recalling Ohm’s law for n resistors {R1, R2, …, Rn}, the equivalent resistances for this combination, when all resistors are...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 8 pdf
... C = 0.25 F, and L = H: a Write the equations for the phasors of the voltages and currents b Form the matrix representation for the equations found in part (a) c Plot the magnitude and phase of ... primary tool for understanding and solving physical problems at the atomic and subatomic scales In this section, we define these matrices and find key properties of their eigenvalues and eigenvectors ... as these form the tools for the matrix formulation of ray optics and Gaussian optics, which are two of the major sub-fields of photonics engineering Example 8.16 Find the eigenvalues and eigenvectors...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 9 ppt
... matrix form, this transformation can be represented by: −1 P= 0 0 −1 (9.2) • For the reflection about the x-axis, denoted by Px, and the reflection about the y-axis, denoted by Py , the transformation ... transformation matrix for simultaneously compressing the x-coordinate by a factor of 2, while expanding the y-coordinate by a factor of Apply this transformation to the trapezoid of Example 9.1 and ... strategy for solving the problem goes as follows: Perform a translation to place Q at the origin of a new coordinate system Perform a π/4 rotation around the new origin, using the above form for rotation...
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Elementary mathematical and computational tools for electrical and computer engineers using Matlab - Chapter 10 docx
... same results by noting that the events E and O (B and C) are disjoint and that their union spanned the set S Therefore, the probabilities for events O and C could have been deduced, as well, through ... components have unequal values Therefore, while a can have any of 10 possible values, b can have only 9, and c can have only Therefore, n(A) = × × 10, and the probability for the event A is P( A) = × ... equal to 2b, the foci are located at (h – c, k) and (h + c, k), and those of the vertices at (h – a, k) and (h + a, k) In this case, c > a > and c > b > and c = a2 + b2 (S.13) Geometric Definition...
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Báo cáo y học: "The Open Microscopy Environment (OME) Data Model and XML file: open tools for informatics and quantitative analysis in biological imaging" docx
... software tools that use a relational database for information storage, and an XML-based file format used for transmission of this information and storage outside of databases The OME XML file format ... the OME XML file format is not raw performance, but interoperability above all else, using widely accepted standards and practices for information exchange As the OME XML file format has gained ... WA and Bitplane, Zurich, Switzerland), and it has been proposed as a standard recommendation for image data migration by the European Advanced Microscopy Network [20] Immediate applications for...
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Data based system design and network analysis tools for chemical and biological processes
... Science and Engineering) for involving me as data analyst for their project I extend my thanks to Prof M.S Chiu and Prof Sanjay Swarup for their kind acceptance to be on the panel of examiners and for ... Gauri and Sheela) for associating me in their work and utilizing some of the data analysis tools developed in this research for their project Similarly, I wish to thank my friend Umid Joshi and ... department and NUS for recognizing my performance and for awarding prestigious Presidents Graduate Fellowship It is surely an honor that I will cherish long My affectionate thanks to all my labmates and...
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ĐỀ TÀI: CASE tools for deverlopment and Software Quality Assurance
... org.junit.After; import org.junit.Before; import org.junit.Test; import java.util.regex.Pattern; public class test case selenium extends SeleneseTestCase { @Before public void setUp() throws Exception ... selenium.waitForPageToLoad("10000"); selenium.click("id=submitbutton"); selenium.click("id=TermsOfService"); selenium.click("id=Personalization"); selenium.click("id=submitbutton"); selenium.waitForPageToLoad("10000"); ... test_input($_POST["email"]); // check if e-mail address is well-formed if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { $emailErr = "Invalid email format"; } } if (empty($_POST["website"])) { $website...
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Advanced Methods and Tools for ECG Data Analysis - Part 1 ppt
... candidates for such a problem The development of closed-loop systems It is always problematic for a clinician to relinquish the task of classification and intervention for personal, legal, and ... between the LL and average of the arm leads; aVR is the difference between the RA and the average of LL and LA, and aVL is the difference between the LA and the average of the RA and LL Since there ... 11 presents a wavelet and hidden Markov model–based procedure for robust QT-analysis Chapter 12 describes techniques for supervised classification and hybrid techniques for classifying ECG metrics,...
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Advanced Methods and Tools for ECG Data Analysis - Part 2 doc
... commonly used for electroencephalograms (and more increasingly is becoming the standard for ECGs); HL7 [26, 27] (an XML-based format for the exchange of data in hospitals); and WaveForm DataBase ... contains information about the binary file format variety, the number and type of channels, the lengths, gains, and offsets of the signals, and any other clinical information that is available for the ... Transmission, and Representation questions to ask when choosing a data format and access libraries include: • • • • • • • • • • • • • What are the data going to be used for? Are the data format and libraries...
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Advanced Methods and Tools for ECG Data Analysis - Part 3 docx
... 698–715 Clifford, G D., “Signal Processing Methods for Heart Rate Variability,” Ph.D dissertation, University of Oxford, 2002 Clifford, G D., F Azuaje, and P E McSharry, Advanced Tools for ECG Analysis,” ... can therefore only be used to evaluate metrics involving the LF and HF bands The upper frequency limit of the highest band for HRV analysis is 0.4 Hz [51] Since the average time interval for N points ... spectrum For a white noise process the spectrum is flat and β = For pink noise processes, β = 1, and for Brownian processes, β = Black noise has β > DFA is an alternative variance-based method for...
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